<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">芒果管家</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;background:#000;color:#000;position:relative;border-color:#fff" @click.native.prevent="handleLogin"><div class="container">

            <a href="#" class="btn effect01"><span>点击登陆</span></a>
        </div></el-button>

      <div class="tips">
        <span style="margin-right:20px;">仅限管理员登录</span>
      </div>

    </el-form>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码不能少于6位数'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'admin',
        password: '111111'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}


/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.container {
            align-items: center;
            display: flex;
            flex-direction: column;
            justify-content: center;
            text-align: center;
            width: 100%;
        }



        .btn {
            letter-spacing: 0.1em;
            cursor: pointer;
            font-size: 14px;
            font-weight: 400;
            width: 100%;
            position: relative;
            text-decoration: none;
            text-transform: uppercase;
            width: 100%;
        }

        .btn:hover {
            text-decoration: none;
        }
        /*btn_background*/

        .effect01 {
            color: #FFF;
            border: 4px solid #000;
            box-shadow: 0px 0px 0px 1px #000 inset;
            background-color: #000;
            overflow: hidden;
            position: relative;
            transition: all 0.3s ease-in-out;
        }

        .effect01:hover {
            border: 4px solid #000;
            background-color: #FFF;
            box-shadow: 0px 0px 0px 4px #EEE inset;
        }
        /*btn_text*/

        .effect01 span {
            transition: all 0.2s ease-out;
            z-index: 2;
        }

        .effect01:hover span {
            letter-spacing: 0.13em;
            color: #333;
        }
        /*highlight*/

        .effect01:after {
            background: #FFF;
            border: 0px solid #000;
            content: "";
            height: 155px;
            left: -75px;
            opacity: .8;
            position: absolute;
            top: -50px;
            -webkit-transform: rotate(35deg);
            transform: rotate(35deg);
            width: 50px;
            transition: all 1s cubic-bezier(0.075, 0.82, 0.165, 1);
            /*easeOutCirc*/
            z-index: 1;
        }

        .effect01:hover:after {
            background: #FFF;
            border: 20px solid #000;
            opacity: 0;
            left: 120%;
            -webkit-transform: rotate(40deg);
            transform: rotate(40deg);
        }
.login-container {
  min-height: 100%;
  width: 100%;
  background: url(../../assets/img1/beijing.png) no-repeat;
  background-size:100% 100%;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
